Unable to detach (spindown) external USB HDD in 15.04; “Safely Remove” just remounts it
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I have an external USB 3.0 HDD with several partitions on it, and I can't safely remove it (spin it down) before unplugging in Ubuntu 15.04.
I can run "Unmount" on each partition; but after unmounting all partitions disk is still spinning (it vibrates and I hear the spinning), and I think it may be unsafe to unplug it in such condition.
There is a Safely Remove Drive context menu option in Nautilus, Safely remove parent device in left Unity panel, and there is the command udisks --detach /dev/sdb (recommended in this Ubuntu Forums post). After any of these actions HDD spins down for 0.4-0.5 seconds, and then it is detected again as plugged in; all its partitions are auto-mounted just like when I insert its USB cable for the first time.
In dmesg I see
[ 46.592192] usb 3-1: USB disconnect, device number 4
[ 47.003378] usb 3-1: new SuperSpeed USB device number 5 using xhci_hcd
...
[ 48.638436] EXT4-fs (sdb1): mounted filesystem with ordered data mode. Opts: (null)
Click "Safely Remove Drive" for second time:
[ 68.815860] usb 3-1: USB disconnect, device number 6
[ 69.229567] usb 3-1: new SuperSpeed USB device number 7 using xhci_hcd
....
[ 71.199942] EXT4-fs (sdb1): mounted filesystem with ordered data mode. Opts: (null)
How can I safely unmount and spindown an external HDD without having it get redetected in seconds?
mount 15.04 external-hdd
edited Feb 12 at 15:33
Zanna
51k13138242
asked Jul 12 '15 at 10:34
osgxosgx
497516
add a comment |
I have an external USB 3.0 HDD with several partitions on it, and I can't safely remove it (spin it down) before unplugging in Ubuntu 15.04.
I can run "Unmount" on each partition; but after unmounting all partitions disk is still spinning (it vibrates and I hear the spinning), and I think it may be unsafe to unplug it in such condition.
There is a Safely Remove Drive context menu option in Nautilus, Safely remove parent device in left Unity panel, and there is the command udisks --detach /dev/sdb (recommended in this Ubuntu Forums post). After any of these actions HDD spins down for 0.4-0.5 seconds, and then it is detected again as plugged in; all its partitions are auto-mounted just like when I insert its USB cable for the first time.
In dmesg I see
[ 46.592192] usb 3-1: USB disconnect, device number 4
[ 47.003378] usb 3-1: new SuperSpeed USB device number 5 using xhci_hcd
...
[ 48.638436] EXT4-fs (sdb1): mounted filesystem with ordered data mode. Opts: (null)
Click "Safely Remove Drive" for second time:
[ 68.815860] usb 3-1: USB disconnect, device number 6
[ 69.229567] usb 3-1: new SuperSpeed USB device number 7 using xhci_hcd
....
[ 71.199942] EXT4-fs (sdb1): mounted filesystem with ordered data mode. Opts: (null)
How can I safely unmount and spindown an external HDD without having it get redetected in seconds?
mount 15.04 external-hdd
edited Feb 12 at 15:33
Zanna
51k13138242
asked Jul 12 '15 at 10:34
osgxosgx
497516
2
I'm facing the same problem, the drive is mounted again automatically. How can we remove it safely then???
– Salvatorelab
Aug 2 '15 at 9:15
add a comment |
I have an external USB 3.0 HDD with several partitions on it, and I can't safely remove it (spin it down) before unplugging in Ubuntu 15.04.
I can run "Unmount" on each partition; but after unmounting all partitions disk is still spinning (it vibrates and I hear the spinning), and I think it may be unsafe to unplug it in such condition.
There is a Safely Remove Drive context menu option in Nautilus, Safely remove parent device in left Unity panel, and there is the command udisks --detach /dev/sdb (recommended in this Ubuntu Forums post). After any of these actions HDD spins down for 0.4-0.5 seconds, and then it is detected again as plugged in; all its partitions are auto-mounted just like when I insert its USB cable for the first time.
In dmesg I see
[ 46.592192] usb 3-1: USB disconnect, device number 4
[ 47.003378] usb 3-1: new SuperSpeed USB device number 5 using xhci_hcd
...
[ 48.638436] EXT4-fs (sdb1): mounted filesystem with ordered data mode. Opts: (null)
Click "Safely Remove Drive" for second time:
[ 68.815860] usb 3-1: USB disconnect, device number 6
[ 69.229567] usb 3-1: new SuperSpeed USB device number 7 using xhci_hcd
....
[ 71.199942] EXT4-fs (sdb1): mounted filesystem with ordered data mode. Opts: (null)
How can I safely unmount and spindown an external HDD without having it get redetected in seconds?
mount 15.04 external-hdd
edited Feb 12 at 15:33
Zanna
51k13138242
asked Jul 12 '15 at 10:34
osgxosgx
497516
I have an external USB 3.0 HDD with several partitions on it, and I can't safely remove it (spin it down) before unplugging in Ubuntu 15.04.
I can run "Unmount" on each partition; but after unmounting all partitions disk is still spinning (it vibrates and I hear the spinning), and I think it may be unsafe to unplug it in such condition.
There is a Safely Remove Drive context menu option in Nautilus, Safely remove parent device in left Unity panel, and there is the command udisks --detach /dev/sdb (recommended in this Ubuntu Forums post). After any of these actions HDD spins down for 0.4-0.5 seconds, and then it is detected again as plugged in; all its partitions are auto-mounted just like when I insert its USB cable for the first time.
In dmesg I see
[ 46.592192] usb 3-1: USB disconnect, device number 4
[ 47.003378] usb 3-1: new SuperSpeed USB device number 5 using xhci_hcd
...
[ 48.638436] EXT4-fs (sdb1): mounted filesystem with ordered data mode. Opts: (null)
Click "Safely Remove Drive" for second time:
[ 68.815860] usb 3-1: USB disconnect, device number 6
[ 69.229567] usb 3-1: new SuperSpeed USB device number 7 using xhci_hcd
....
[ 71.199942] EXT4-fs (sdb1): mounted filesystem with ordered data mode. Opts: (null)
How can I safely unmount and spindown an external HDD without having it get redetected in seconds?
mount 15.04 external-hdd
mount 15.04 external-hdd
edited Feb 12 at 15:33
Zanna
51k13138242
asked Jul 12 '15 at 10:34
osgxosgx
497516
edited Feb 12 at 15:33
Zanna
51k13138242
asked Jul 12 '15 at 10:34
osgxosgx
497516
edited Feb 12 at 15:33
Zanna
51k13138242
edited Feb 12 at 15:33
Zanna
51k13138242
edited Feb 12 at 15:33
Zanna
51k13138242
51k13138242
asked Jul 12 '15 at 10:34
osgxosgx
497516
asked Jul 12 '15 at 10:34
osgxosgx
497516
asked Jul 12 '15 at 10:34
osgxosgx
497516
497516
2
I'm facing the same problem, the drive is mounted again automatically. How can we remove it safely then???
– Salvatorelab
Aug 2 '15 at 9:15
add a comment |
2
I'm facing the same problem, the drive is mounted again automatically. How can we remove it safely then???
– Salvatorelab
Aug 2 '15 at 9:15
2
2
I'm facing the same problem, the drive is mounted again automatically. How can we remove it safely then???
– Salvatorelab
Aug 2 '15 at 9:15
I'm facing the same problem, the drive is mounted again automatically. How can we remove it safely then???
– Salvatorelab
Aug 2 '15 at 9:15
add a comment |
1 Answer
1
active
oldest
votes
First of all, you must unmount all partitions mounted on the USB HDD, then try detach it. I gave an example below with udisksctl
1 Use lsblk to see your USB HDD and all mounted partition on it:
Shell@localhost:~$ lsblk
sda 8:0 0 931.5G 0 disk
├─sda1 8:1 0 128M 0 part
└─sda2 8:2 0 931.4G 0 part /
sdb 8:16 0 501.8G 0 disk
└─sdb1 8:20 0 500.2G 0 part /USBDRIVE
2 Unmount all mounted partition for USB HDD
sudo umount /dev/sdb1
3 Power off the USB HDD using next command :
udisksctl power-off -b /dev/sdb
replace /dev/sdb with the correct USB HDD.
answered Jun 1 '18 at 12:44
Cornea ValentinCornea Valentin
1357
What are real actions done by "udisksctl power-off"?
– osgx
Jun 1 '18 at 15:10
Arranges for the drive to be safely removed and powered off. On the OS side this includes ensuring that no process is using the drive, then requesting that in-flight buffers and caches are committed to stable storage. The exact steps for powering off the drive depends on the drive itself and the interconnect used. For drives connected through USB, the effect is that the USB device will be deconfigured followed by disabling the upstream hub port it is connected to.
– Cornea Valentin
Jun 1 '18 at 19:54
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
First of all, you must unmount all partitions mounted on the USB HDD, then try detach it. I gave an example below with udisksctl
1 Use lsblk to see your USB HDD and all mounted partition on it:
Shell@localhost:~$ lsblk
sda 8:0 0 931.5G 0 disk
├─sda1 8:1 0 128M 0 part
└─sda2 8:2 0 931.4G 0 part /
sdb 8:16 0 501.8G 0 disk
└─sdb1 8:20 0 500.2G 0 part /USBDRIVE
2 Unmount all mounted partition for USB HDD
sudo umount /dev/sdb1
3 Power off the USB HDD using next command :
udisksctl power-off -b /dev/sdb
replace /dev/sdb with the correct USB HDD.
answered Jun 1 '18 at 12:44
Cornea ValentinCornea Valentin
1357
What are real actions done by "udisksctl power-off"?
– osgx
Jun 1 '18 at 15:10
Arranges for the drive to be safely removed and powered off. On the OS side this includes ensuring that no process is using the drive, then requesting that in-flight buffers and caches are committed to stable storage. The exact steps for powering off the drive depends on the drive itself and the interconnect used. For drives connected through USB, the effect is that the USB device will be deconfigured followed by disabling the upstream hub port it is connected to.
– Cornea Valentin
Jun 1 '18 at 19:54
add a comment |
First of all, you must unmount all partitions mounted on the USB HDD, then try detach it. I gave an example below with udisksctl
1 Use lsblk to see your USB HDD and all mounted partition on it:
Shell@localhost:~$ lsblk
sda 8:0 0 931.5G 0 disk
├─sda1 8:1 0 128M 0 part
└─sda2 8:2 0 931.4G 0 part /
sdb 8:16 0 501.8G 0 disk
└─sdb1 8:20 0 500.2G 0 part /USBDRIVE
2 Unmount all mounted partition for USB HDD
sudo umount /dev/sdb1
3 Power off the USB HDD using next command :
udisksctl power-off -b /dev/sdb
replace /dev/sdb with the correct USB HDD.
answered Jun 1 '18 at 12:44
Cornea ValentinCornea Valentin
1357
What are real actions done by "udisksctl power-off"?
– osgx
Jun 1 '18 at 15:10
Arranges for the drive to be safely removed and powered off. On the OS side this includes ensuring that no process is using the drive, then requesting that in-flight buffers and caches are committed to stable storage. The exact steps for powering off the drive depends on the drive itself and the interconnect used. For drives connected through USB, the effect is that the USB device will be deconfigured followed by disabling the upstream hub port it is connected to.
– Cornea Valentin
Jun 1 '18 at 19:54
add a comment |
First of all, you must unmount all partitions mounted on the USB HDD, then try detach it. I gave an example below with udisksctl
1 Use lsblk to see your USB HDD and all mounted partition on it:
Shell@localhost:~$ lsblk
sda 8:0 0 931.5G 0 disk
├─sda1 8:1 0 128M 0 part
└─sda2 8:2 0 931.4G 0 part /
sdb 8:16 0 501.8G 0 disk
└─sdb1 8:20 0 500.2G 0 part /USBDRIVE
2 Unmount all mounted partition for USB HDD
sudo umount /dev/sdb1
3 Power off the USB HDD using next command :
udisksctl power-off -b /dev/sdb
replace /dev/sdb with the correct USB HDD.
answered Jun 1 '18 at 12:44
Cornea ValentinCornea Valentin
1357
First of all, you must unmount all partitions mounted on the USB HDD, then try detach it. I gave an example below with udisksctl
1 Use lsblk to see your USB HDD and all mounted partition on it:
Shell@localhost:~$ lsblk
sda 8:0 0 931.5G 0 disk
├─sda1 8:1 0 128M 0 part
└─sda2 8:2 0 931.4G 0 part /
sdb 8:16 0 501.8G 0 disk
└─sdb1 8:20 0 500.2G 0 part /USBDRIVE
2 Unmount all mounted partition for USB HDD
sudo umount /dev/sdb1
3 Power off the USB HDD using next command :
udisksctl power-off -b /dev/sdb
replace /dev/sdb with the correct USB HDD.
answered Jun 1 '18 at 12:44
Cornea ValentinCornea Valentin
1357
edited Jun 1 '18 at 13:01
answered Jun 1 '18 at 12:44
Cornea ValentinCornea Valentin
1357
answered Jun 1 '18 at 12:44
Cornea ValentinCornea Valentin
1357
answered Jun 1 '18 at 12:44
Cornea ValentinCornea Valentin
1357
1357
What are real actions done by "udisksctl power-off"?
– osgx
Jun 1 '18 at 15:10
Arranges for the drive to be safely removed and powered off. On the OS side this includes ensuring that no process is using the drive, then requesting that in-flight buffers and caches are committed to stable storage. The exact steps for powering off the drive depends on the drive itself and the interconnect used. For drives connected through USB, the effect is that the USB device will be deconfigured followed by disabling the upstream hub port it is connected to.
– Cornea Valentin
Jun 1 '18 at 19:54
add a comment |
What are real actions done by "udisksctl power-off"?
– osgx
Jun 1 '18 at 15:10
Arranges for the drive to be safely removed and powered off. On the OS side this includes ensuring that no process is using the drive, then requesting that in-flight buffers and caches are committed to stable storage. The exact steps for powering off the drive depends on the drive itself and the interconnect used. For drives connected through USB, the effect is that the USB device will be deconfigured followed by disabling the upstream hub port it is connected to.
– Cornea Valentin
Jun 1 '18 at 19:54
What are real actions done by "udisksctl power-off"?
– osgx
Jun 1 '18 at 15:10
What are real actions done by "udisksctl power-off"?
– osgx
Jun 1 '18 at 15:10
Arranges for the drive to be safely removed and powered off. On the OS side this includes ensuring that no process is using the drive, then requesting that in-flight buffers and caches are committed to stable storage. The exact steps for powering off the drive depends on the drive itself and the interconnect used. For drives connected through USB, the effect is that the USB device will be deconfigured followed by disabling the upstream hub port it is connected to.
– Cornea Valentin
Jun 1 '18 at 19:54
Arranges for the drive to be safely removed and powered off. On the OS side this includes ensuring that no process is using the drive, then requesting that in-flight buffers and caches are committed to stable storage. The exact steps for powering off the drive depends on the drive itself and the interconnect used. For drives connected through USB, the effect is that the USB device will be deconfigured followed by disabling the upstream hub port it is connected to.
– Cornea Valentin
Jun 1 '18 at 19:54
add a comment |
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2
I'm facing the same problem, the drive is mounted again automatically. How can we remove it safely then???
– Salvatorelab
Aug 2 '15 at 9:15